Note 2 - Fair Value of Financial Instruments - Financial Instruments (Details) - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Reported Value Measurement [Member]
Total	$ 17,545,883	$ 18,010,108
Estimate of Fair Value Measurement [Member]
Total	17,545,883	18,010,108
Fair Value, Inputs, Level 2 [Member] \| Cash and Cash Equivalents Excluding Certificates of Deposit [Member] \| Reported Value Measurement [Member]
Cash and cash equivalents, fair value	15,296,959	18,010,108
Fair Value, Inputs, Level 2 [Member] \| Cash and Cash Equivalents Excluding Certificates of Deposit [Member] \| Estimate of Fair Value Measurement [Member]
Cash and cash equivalents, fair value	15,296,959	18,010,108
Fair Value, Inputs, Level 2 [Member] \| Certificates of Deposit [Member] \| Reported Value Measurement [Member]
Cash and cash equivalents, fair value	2,248,924	0
Fair Value, Inputs, Level 2 [Member] \| Certificates of Deposit [Member] \| Estimate of Fair Value Measurement [Member]
Cash and cash equivalents, fair value	$ 2,248,924	$ 0